Involuntary muscle contractions which move a bolus through the gastrointestinal tract are called

What is a universal way that predation benefits the predator? predation increases mate availability. predation in defense of space. the predator gets the energy it needs to survive. the predator keeps parasites from hurting the species.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

Which is the best example of plant tissue? the answer is d (just took the test)